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DB_ENV-&gt;memp_trickle
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#include &lt;db.h&gt;

int
DB_ENV-&gt;memp_trickle(DB_ENV *env, int percent, int *nwrotep);
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Description: DB_ENV-&gt;memp_trickle
The DB_ENV-&gt;memp_trickle method ensures that a specified percent of the pages
in the shared memory pool are clean, by writing dirty pages to their
backing files.
The purpose of the DB_ENV-&gt;memp_trickle function is to enable a memory
pool manager to ensure that a page is always available for reading in new
information without having to wait for a write.
The DB_ENV-&gt;memp_trickle method
returns a non-zero error value on failure
and 0 on success.

Parameters 
 nwrotep<ul compact><li>The nwrotep parameter references memory into which
 the number of pages written to reach the specified
percentage is copied.</ul> 
 percent<ul compact><li>The percent parameter is the percent of the pages in the cache
that should be clean.</ul>
 
 Errors
The DB_ENV-&gt;memp_trickle method
may fail and return one of the following non-zero errors:
 
EINVAL<ul compact><li>An
invalid flag value or parameter was specified.</ul>
 
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 Class
<a href="../../db4-devel-4.7.25/api_c/env_class.html">DB_ENV</a>, <a href="../../db4-devel-4.7.25/api_c/mempfile_class.html">DB_MPOOLFILE</a>
 See Also
<a href="../../db4-devel-4.7.25/api_c/memp_list.html">Memory Pools and Related Methods</a>
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